No, certainly developers cannot teach everything, but at least some guidelines on how to use the services created would be necessary
But it is also true that developers, as individuals, cannot always be teachers. We need more people like nostr:npub1dergggklka99wwrs92yz8wdjs952h2ux2ha2ed598ngwu9w7a6fsh9xzpc and nostr:npub18ams6ewn5aj2n3wt2qawzglx9mr4nzksxhvrdc4gzrecw7n5tvjqctp424 focused on creating good informative content.
No, certainly developers cannot teach everything, but at least some guidelines on how to use the services created would be necessary